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Suppose the first two columns, b1 and b2 of B are equal. What can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.

Suppose the first two columns, b1 and b2 of B are equal. What can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Suppose the first two columns, b1 and b2 of B are equal. WWhat can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.
Transcribed Image Text:Suppose the first two columns, b1 and b2 of B are equal. WWhat can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.
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